{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120150",
    "entityType": "User",
    "nonce": "0xe55f8c538e3bb8ac06890b85001b26057bd95b966e28d86affe02dbeabed7f5e",
    "signature": "0x51fe1694b9da90d800d0bfd514d1876f441222850c018a4185bcc1512e2c0ff2265d81dbff363549ad04c231e508b757fb8a32effe8e68db4ea88883704cf4311c",
    "signer": "0x2B55314d733BC60522711F9B9914f271d97aDD6B",
    "userId": "224685891"
  }
}